Clock



BOARDMAN & WELLS.

n Clock.- No. 4,914. vPatented Jan. 1, 1847.'

UNITED STATES PATENT OFFICE.

C. BOARDMAN AND JOS. A. WELLS'OF BRISTOL, CONNECTICUT.

CLOCK.

Specification of Letters Patent No. 4,914, dated January 1, 1847.

To all whom t may concern:

Be it known that we, CHAUNCEY BOARD- MAN and JosnrH A. IVELLS, ofBristol` in the county of I-Iartford and State of Connecticut, haveinvented a new and useful Improvement in Clocks and Timepieces; and wedo hereby declare the following to be a full and exact description ofthe same, reference being had to the accompanying drawings, making apart of this specification.

The nature of our invention consists in the placing the driving springupon the same shaft with the fusee, connecting the shaft of the combinedfusee and spring to the frame of the clock movements, and attaching oneend of the spring to the frame of the clock movement as herein setforth.

In the accompanying drawings Figure l is a side elevatio-n of themovement and frame of a clock, and Fig. 2, is an edge View of the same.

The same letters refer to corresponding parts in both ligures.

B, is a conical pulley or fusee, constructed of wood or other cheapmaterial-a shaft passes through its center, the journals or pivots o-nthe ends of which are secured in and work in bearings in the arms C, C,eX- tending from, and forming a part of the frame D, of the clockmovement.

A, is the driving spring inclosing one end of the shaft of the fusee-theinner end of the spring being made fast to the same, an'd its outer endsecured to the seat board E, or some other convenient part of themovement frame. The diminishing pulley or fusee has a spiral groove cutin its periphery in the usual manner: its position is such as to receivea cord from the barrel F, (of the movement) into said groove in a directline, so as to obviate friction or wear of cord. The arms C, C, whichsustain the shaft of the combined spring and fusee may project from theside or top of the movement frame D, as may be found most convenient.

The following are some of the advantages of our arrangement of thespring and fusee on the same shaft, and the combination of the same withthe frame of the clock movement. First, its simplicity-rendering theclock less liable to get out of repair. Second. It graduates andequalizes the power of the spring at all times upon the moving parts ofthe clock-thereby rendering the moving parts more durable, and capableof being regulated to keep perfect time through one day or eight days.Third. Our improvement enables us to construct a complete spring clock;all parts combined, all performing their respective oiiices; all thepower being within itself, there is no straining of one part to theinjury of another. It enables us also to put a clock or time piece intoa small compass to be hung up in a hall or public building, without acase. Our improved clocks can also be transported without risk ofmislaying or loosening parts of the movements. In point of economy anddurability also, we think our improved clocks surpass everythingheretofore constructed, as they can be made cheaper, in consequence ofthe combination of the spring and fusee upon the same shaft saving awheel and pinion-thereby obviat-ing friction, and at the same timeequalizing the power at all times upon the barrel and moving parts andconsequently rendering them more durable.

What we claim as our invention and desire to secure by Letters Patent,is`

The placing of the driving spring and fusee on the same shaft,connecting the same to the movement frame of the clock, and thecombination of the same with the barrel F, and movement of the clock,substantially in the manner and for the purpose herein set forth.

CHAUNCEY BOARDMAN. JOSEPH A. vWELLS.

lilitnesses TRACY PEoK, JosIAl-I T. Pieck,

